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effects on the latency. Therefore, after layout and wiring, it is necessary to conduct timing simulation on the system and each module, analyze the timing relationship, estimate the system performance, and check and eliminate the risk of competition. The software tools introduced in functional simulation generally support integrated post-simulation. 8) board-level simulation and Verification Board-level simulation is mainly used in high-speed circuit design. It analyzes signal integrity, electr

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knowledge, architecture, performance and selection of network processors (Intel, Motorola, IBM) 5); basic knowledge and performance of common bus 6) detailed performance introduction, design points and selection of various types of memory 7) Basic knowledge of common physical layer interface chips in Datacom and telecom fields, performance, design highlights and selection 8) key points and highlights of common device Selection 9); detailed performance introduction, design points and Selection G

Formula for propagation delay of cabling in PCB The first half is information from altera. The propagation latency (tPD) is the time required to transmit a signal from one point to another. Transmission Line propagation delay is a function of the relative dielectric constant of materials. Propagation delay of micro-Strip Layout You can use formula 5 to calculate the propagation delay of the strip layout. Formula 5: Delayed propagation in the line

article will describe in detail the Modelsim configuration process, convenient for later review. (1) First set up the multiplier model, editing good Verilog HDL Program (learning Focus)(2) associated Quartus and Modelsim-alteraTools----Options----EDA tool options, select Simulation Tools, and add installation paths to the simulation tools. This article chooses the modelsim-altera. (3) Set the simulation tool with the text format to be emulated,time

LPM (Library Parameterized Modules) is a Parameterized macro function module Library. Using these functional module libraries can greatly improve the efficiency of icdesign. The LPM standard was introduced in 1990. In April 1993, LPM, as a subsidiary standard of the Electronic Design interchange format (EDIF), was incorporated into the temporary standard of the Electronic Industry Association (EIA. It is very convenient to call the LPM library function in MAX + plus ii and Quartus II. You can ei

ATMEL Corporation announced the launch of its AT91CAP7A-STK entry-level development kit, designed to evaluate its ProcessorCustom cap Microcontroller(MCU) series of entry-level tools. The custom MCU of cap7 allows designers to transfer from the "ARM7 and FPGA" design to a low one-time R D cost (NRE) Single ChipSolution: the cost per device is reduced by about 30%, and the performance is improved by 8 times. The static power consumption and working power consumption are reduced by 98% and 70% re

-type write; (5) Data delay is fixed to three clock periods; (6) The refresh mode only uses the automatic refresh mode. when the device is idle, it is in the continuous automatic refresh status; (7) the device is initialized only once after power-on, and the working mode cannot be changed; (8) The burst mode is fixed as the sequence mode, and the burst length is fixed as the whole page; (9) only read/write commands with pre-charging are used. After each read/write operation is completed, an auto

image frame synthesis. To provide continuous image signals to the front-end processor (DSP), two image frame storages (A and B) are used to store the collected image data and the image data to be processed, real-time continuous acquisition and processing of images. As shown in hardware interface 3 between DSP and SAA7113, the control logic of the entire interface includes two submodules: The frame image write controller and the ping-pong switch, which are completed by a CPLD. The CPLD chip uses

At first, I thought I could read and write FLASH with IOWR and IORD, but I was not successful. Then I came to the OO dual blog and found out that altera provided hal for flash operations, use it directly. 1. Add the statement containing the flash HAL header file: # Include "sys/alt_flash.h" // flash HAL 2. Enable the flash device: alt_flash_fd * fd = alt_flash_open_dev (CFI_FLASH_0_NAME); If the flash device fails, fd = 0; 3. Write the flash devic

. The TSU/TCO on the pin is divided into the following three parts. IOE cabling delay. this latency is proportional to the Tsu/TCO latency of the pin. To reduce the latency of Tsu/TCO on IOE, two types of triggers are set specifically in IOE: fast input register (TSU optimized when FPGA pins are input) and fast output register (when FPGA pins are output, used to optimize TCO) Internal logical cabling delay. In FPGA of Altera, a lab is

into two parts: the hardware part and the software part. The hardware part includes many parts in the SOC. Let's talk about the architecture of Altera niosii (below) In the box, an embedded system includes CPU, bus, on-chip memory, and so on. These are all hard parts, that is to say, to establish the most basic SOC, you must start from here. We can think like this, outside the box is the actual hardware, that is, the chip or hardware that is

in the past. Pipeline constraint has reached 100 MHz, but Quartus II can only synthesize 68.35 MHz at the end 』 "Wow !! Even if a line of code has not been changed, fmax has changed from 68.35mhz to 102.44 MHz, which is amazing. "the alias of xiaomegao is called. "Other examples of DE2-70 CD will be handed over to you !!』 "OK !! Without being a senior student 』 Download the complete programDe2_70_nios_12_pipeline_bridge.7z ConclusionBridge is a very practical thing. Clever Use of b

AbstractIn Quartus II 8.1, Quartus II handbook version 8.1 Vol.4 has made some changes to the nameing Convention of aveon signal type. IntroductionUse environment: US us II 8.1 In Quartus II handbook version 8.1 Vol.4 p.6-4, Altera announced the latest naming convention. The overall change is not significant. It is worth noting that the change of the conductor interface is only one, rather than the original one. I think this change is reasonable,

------- Flash font ------------ Today, I used flash in liunx to view the online training course of Altera. The text in the result is displayed as a box. I found the solution for Baidu to solve the problem of Chinese garbled characters in flash:Terminal command: sudo gedit/etc/fonts/CONF. d/49-sansserif.confReplace the last 4th rows with: ------- Chinese garbled gedit ------------ The windows. txt file opened in ubuntu.com is garbled. The fol

De2 calendar year code BytesGlobal user instance Http://www.terasic.com.cn/cgi-bin/page/archive.pl? Language = China categoryno = NO = 330 partno = 2 Blog of other Daniel Http://blog.ednchina.com/riple/47380/message.aspx Http://www.cnblogs.com/oomusou/archive/2008/08/11/verilog_edge_detection_circuit.html Altera began to like cookbook. Advanced synthesis cookbook: A Design Guide for Stratix II, Stratix III, and Stratix IV devices May 2007

is that the phase shift value meets the median value of the minimum valid range for Data Reading and writing. In the past, privileged students did not have much way to estimate the phase shift. They could only find the best phase shift value by feeling, or locate the best phase shift value again and again based on the timing analysis results. The workload was heavy, there are also some components of luck, and the method officially proposed by Altera